DropDownList 与Hashtable之间梆定
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/// <summary>
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/// 功能:DropDownList与Hashtable数据的梆定
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///
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/// 这是一个很特殊的一个列字,它们之间梆
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///
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/// 定只是梆定键与值就可以了
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///
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/// 时间:二00八年一月二十五日
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///
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/// 作者:曹代明
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/// </summary>
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using System;
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using System.Data;
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using System.Configuration;
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using System.Web;
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using System.Web.Security;
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using System.Web.UI;
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using System.Web.UI.WebControls;
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using System.Web.UI.WebControls.WebParts;
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using System.Web.UI.HtmlControls;
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using System.Collections;
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public partial class _Default : System.Web.UI.Page
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{
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protected void Page_Load(object sender, EventArgs e)
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{
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if (IsPostBack == false)
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{
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Hashtable ht = new Hashtable();
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ht.Add("成都","028");
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ht.Add("西安","029");
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ht.Add("北京","010");
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DropDownList1.DataSource = ht;
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DropDownList1.DataTextField = "key"; //数据字段就是键
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DropDownList1.DataValueField = "value"; //数据源就是value值
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DropDownList1.DataBind();
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}
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}
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protected void DropDownList1_SelectedIndexChanged(object sender, EventArgs e)
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{
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Response.Write(this.DropDownList1.SelectedValue.ToString());
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}
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}
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![](/Images/OutliningIndicators/InBlock.gif)
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![](/Images/OutliningIndicators/InBlock.gif)
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![](/Images/OutliningIndicators/InBlock.gif)
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![](/Images/OutliningIndicators/InBlock.gif)
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![](/Images/OutliningIndicators/InBlock.gif)
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![](/Images/OutliningIndicators/InBlock.gif)
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![](/Images/OutliningIndicators/InBlock.gif)
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![](/Images/OutliningIndicators/None.gif)
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![](/Images/OutliningIndicators/None.gif)
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![](/Images/OutliningIndicators/None.gif)
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![](/Images/OutliningIndicators/None.gif)
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![](/Images/OutliningIndicators/None.gif)
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![](/Images/OutliningIndicators/None.gif)
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![](/Images/OutliningIndicators/None.gif)
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![](/Images/OutliningIndicators/None.gif)
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![](/Images/OutliningIndicators/None.gif)
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![](/Images/OutliningIndicators/None.gif)
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![](/Images/OutliningIndicators/None.gif)
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![](/Images/OutliningIndicators/None.gif)
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![](/Images/OutliningIndicators/ExpandedBlockStart.gif)
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![](/Images/OutliningIndicators/InBlock.gif)
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![](/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
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![](/Images/OutliningIndicators/InBlock.gif)
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![](/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
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![](/Images/OutliningIndicators/InBlock.gif)
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![](/Images/OutliningIndicators/InBlock.gif)
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![](/Images/OutliningIndicators/InBlock.gif)
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![](/Images/OutliningIndicators/InBlock.gif)
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![](/Images/OutliningIndicators/InBlock.gif)
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![](/Images/OutliningIndicators/InBlock.gif)
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![](/Images/OutliningIndicators/InBlock.gif)
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![](/Images/OutliningIndicators/InBlock.gif)
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![](/Images/OutliningIndicators/InBlock.gif)
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![](/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
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![](/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
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![](/Images/OutliningIndicators/InBlock.gif)
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![](/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
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![](/Images/OutliningIndicators/InBlock.gif)
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![](/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
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![](/Images/OutliningIndicators/ExpandedBlockEnd.gif)
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![](/Images/OutliningIndicators/None.gif)
这是一种很特殊的一种梆定,这也许是Hashtable的一种独特的地方,这样只是梆定他们的
key,value就可以了,这样对我们在开发中有很大的帮助